Answer: D) Companies replaced hand-operated brakes with air brakes on trains.
Conserving Rubber , taking part in metal drive food drives, buying war bonds, and getting jobs in the war industry. even women got jobs in the war industry they were called 'Rosie the Riveters' because they riveted the sheet metal the the planes
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Answer:
study, and dont freak out. peppermint is good it helps focous.and chew mint gum
Explanation:
The caste system gave Indians a great deal of freedom